We divide 647230 by 90
Let's see how many times 90 fits into 647230.

On to step 1:
If we divide 6 by 90, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 90

Step 2:
64 divided by 90 is 0 with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Fetch the next digit (7) from the dividend, attach it to 64 and continue: 647 / 90

Going ahead to step 3:
647 divided by 90 is 7 with a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 17 after subtracting 630 from 647.
Bring next digit (2) of the dividend behind the 17 and repeat the process: 172 / 90

Step 4:
If we divide 172 by 90, we get 1 and a remainder of 82.
The number 1 becomes the next digit in our result. 
Result so far: 71.0
If we subtract 90 from 172, we get 82.
Append the next digit (3) from the dividend to 82 and continue with: 823 / 90

Let's proceed to step 5:
90 goes into 823 9 times with a remainder of 13.
Record the quotient 9 as the next digit in the result. 
Result so far: 719.0
Subtracting 810 from 823 leaves us with 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 90

Going ahead to step 6:
90 goes into 130 1 times with a remainder of 40.
Put 1 as the next digit of the answer. 
Result so far: 7191.0
Deduct 90 from 130 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 7:
90 goes into 400 4 times with a remainder of 40.
The next digit of our result is 4. 
Result so far: 7191.4
If we take 360 away from 400, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
If we divide 400 by 90, we get 4 and a remainder of 40.
Use 4 as the next digit of our solution. 
Result so far: 7191.44
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 7191.44 with a remainder of 0.04.